This study explored the recovery of valuable metal elements in the lead smelting water-quenching slag using the method of "roasting–grinding–magnetic separation" at a roasting temperature of 1250 °C, coal dosage of 12.5%, roasting time of 90 min, and grinding time of 45 min.
Currently, the majority of copper tailings are not effectively developed. Worldwide, large amounts of copper tailings generated from copper production are continuously dumped, posing a potential environmental threat. Herein, the recovery of iron from copper tailings via low-temperature direct reduction and magnetic separation was …
The heated liquid is poured into a slag-settling furnace. During this step a combination of matte, a mixture of copper, sulfur and iron, and slag, a dense, glassy material made of iron, silica, and other impurities, is …
use for magnetic slag - print-flyers.co.za. use for magnetic slag - zelena-kava.eu. copper recovery magnetic slag copper recovery magnetic slag XSM excellent mining crushing machinery products or production line design, the company is committed to building the Chinese brand mine crushing and processing machinery, mainly crusher, mill, sand …
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The mineral dry separation method is a technique for the comprehensive utilization of steel slag. In this process, two products, i.e., steel slag powder with high activity (reaches 75% of the cementitious activity of pure cement) and inert mineral material, are obtained by crushing and separating steel slag. 12,13 If wet magnetic separation is …
JOURNAL METRICS. Impact Factor (JCR) 2022: 0.8 ℹ Impact Factor (JCR): The JCR provides quantitative tools for ranking, evaluating, categorizing, and comparing journals. The impact factor is one of these; it is a measure of the frequency with which the "average article" in a journal has been cited in a particular year or period.
The Fe3O4 and Fe2SiO4 in copper slag were successfully reduced to metallic iron by coal-based direct reduction. Under the best reduction conditions of 1300 °C reduction temperature, 30 min reduction …
The CS used in the experiments was generated as a byproduct during the refining of copper in a copper company in Yunnan. After drying, it formed gray-black solid particles, and the particle size of 95 wt% of CS was < 0.2 mm. Based on the national standard GB/T 3884 chemical analysis method of copper concentrate, the chemical composition of CS …
furnace with a rate of 6 kg/h. The copper content in the treated slag was stable at 0.4% and magnetite content between 2.0–2.5%. Copper recovery from primary smelter slag …
With the purpose of recovering the metal values, in this study the copper slag was reduced by coke and biochar at 1250 °C in an argon gas atmosphere using the isothermal reduction/drop quenching technique. The phase compositions of metal, matte, and slag were determined using electron probe microanalysis (EPMA). The effects of …
A study published in Transactions of Nonferrous Metals Society of China. detailing a novel method for the recovery of. copper, lead, and zinc from copper smelting slag using a sulfurization-reduction approach.This innovation represents a significant stride in metallurgical waste management, with potential impacts on both industry practices …
ABSTRACT. Copper smelting produces large amounts of slag and new methods of handling this by-product are required. Considering copper smelting slag as metal resource, we studied the effects of a slow cooling process on the crystal growth of magnetite in smelting slag and the applicability of magnetic separation techniques.
To comprehensively reuse copper ore tailings, the recovery of γ-Fe 2 O 3 from magnetic roasted slag after sulfur release from copper ore tailings followed by magnetic separation is performed.
0 5 10 15 20 25 5 0 -- 2 0-4 0 0 8 0 05 0 5 0 0 1 0 0 Inclusion Size (µm) Percentage of Population (%) Figure 1: Size distribution of metallic inclusions in copper converter slag [2]
A new eco-friendly approach for recovery of iron from copper smelting slag: ... materials in modern economic development, and is widely used in electronic and electrical appliances, transportation equipment, machinery manufacturing, and other industries due to its good electrical conductivity, thermal conductivity, ductility, and plasticity(Liu ...
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These metal recovery plants are used to recover the entrapped metal (ferrochrome) from the slag generated during the production of Ferro Chrome and Charge Chrome. The …
Liao Zengli, Tang Pu, Zhang Bo, et al. Experimental study on oxidation modification of copper slag at middle-low temperature [J]. China Nonferrous Metallurgy, 2012(2): 74–78. Google Scholar Wang Heng. Recovery of copper and iron in the converter slag from a copper smelter [J].
The copper smelting process produces plenty of copper slag every year, which is a hazardous solid waste, but a secondary resource. In the present study, the extraction of copper, nickel, and cobalt from copper slag was investigated through the process of sulfation roasting–water leaching and the process of sulfation …
In order to recycle iron from copper slag with total iron content(TFe) of 39.96%(mass fraction),a technique with lignite-based direct reduction followed by magnetic separation was presented.After analysis of chemical composition and crystalline phase,according to experimental mechanism,the tests for studying the effects of different parameters on the …
The comprehensive and harmless utilization of copper slag flotation tailing (CSFT) is the key to a waste-free and sustainable copper industry. ... an enrichment of both Mo and other metals was observed in the magnetic products. The mass recovery of Mo (95%) was the highest, followed by Cu (84 ∼ 85%). Other metals, including Fe (74 ∼ …
Magnetic Susceptibility of Steel Slag. The magnetic susceptibility of steel slag can range from 47.74 × 10^-6 m^3/kg to 77.27 × 10^-6 m^3/kg, with an average of 59.15 × 10^-6 m^3/kg. ... copper, and precious metals, from the slag. This process can improve the efficiency of metal recovery and reduce the environmental impact of slag …
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As part of copper and iron remained in tailings during the magnetic separation and the copper in concentrate was almost not leached, the consumption of sulphuric acid was also reduced. Download : Download high-res image (87KB) Download : Download full-size image; Fig. 8. Proposed flow sheet for the copper and cobalt …
With the shortage of high-quality raw materials and increasingly strict environmental regulations, the recovery of metals from copper slag and pyrolusite has become a research hotspot. A novel method for simultaneously extracting Mn and Fe from pyrolusite and copper slag has been proposed. Under the optimal conditions (Copper …
Slag Deepfield Copper Electromagnet; Specialty Electromagnets. Bipolar Electromagnets; ... Installed directly on your mobile material handling equipment, the MagnePower …
Iron grain growth during deep reduction roasting is important for iron enrichment from copper slag (CS) through magnetic separation. In this work, a novel method of additive …
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The depletion of copper slag refers to the continuous recovery of copper from the copper slag to reduce the copper content in the slag. The depletion methods of copper slag mainly include beneficiation method, leaching method, and fire method . Beneficiation Method. Beneficiation is the most widely used dilution method in industry …
Copper slag is a solid waste during pyrometallurgical production of copper from copper sulphide concentrates, about 2.2 tonnes of which being generated per tonne of metal copper production. ... Preparation of metallic iron powder from copper slag by carbothermic reduction and magnetic separation. H. Long School of Metallurgical ...
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On the one hand, copper slag is nowadays a waste in copper pyrometallurgy despite the significant quantities of iron (>40 wt. %) and copper (1 to 2 wt. %). On the other hand, solar energy, when properly concentrated, offers great potential in high-temperature processes. Therefore, concentrated solar power (CSP) could be used …
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